Ich würde das gerne fixen, da mit das System als solches sehr gut gefällt. Leider endet der verlinkte Thread ohne Lösung I would like to solve that since I really do like the system. yet the linked thread ends without a solution.

I had a very similar issue that my phpMyFAQ was not working from one day to the other and after a long time I got a hind from Strato that they changed the table-type from MyISAM to InnoDB.
Just do a "alter table ... engine=MyISAM;" for all tables of your phpMYFAQ installation and it should hopefully work again.